VMO-6, the composite observation squadron commanded by Major Vincent J. Gottschalk, had already made a name for itself in the Pusan Perimeter actions. Consisting of eight HO3S-1 helicopters and an equal number of OY planes, this former Brigade unit came under the operational control of the 1st Marine Division and the administrative and logistical control of MAG-33. During the Inchon assault, VMO-6 was based on SCAJAP LST QO79 in the harbor except for an Oy attached to each of the two CVEs. The first of a long sequence of helicopter rescue missions during the Inchon-Seoul operation took place on D-plus 1 when First Lieutenant Max N. Nebergall picked up a Navy pilot who had ditched in Inchon harbor. Flights carried out by other aircraft were reported as three reconnaissance, two artillery spot, three beach reconnaissance, and one utility.[248] [248] 1st MarDiv _SAR_, Annex Oboe. VMO-6 displaced ashore the next day to an airstrip improvised near the Division CP by the Marine engineers. This was the beginning of liaison, utility, reconnaissance, evacuation, and rescue flights on a dawn-to-dark basis. Division air and naval gunfire representatives of the Fire Support Coordination Center followed VMO-6 ashore on the 16th. During the planning phase they had worked with their opposite numbers of PhibGru One and with the 11th Marines after the Division landed at Kobe. Although some of the officers and men embarked for Inchon in the _Mount McKinley_, the materiel and 90 percent of the personnel arrived in the _President Jackson_. At 1400 on D-plus 2 the FSCC became operational after all elements and their equipment reported to the Division CP. Responsibility for the coordination of supporting arms ashore was assumed at 0630 on 16 September for air, at 1500 on the 17th for artillery, and at 1800 on the 18th for naval gunfire.[249] [249] _Ibid._, Annexes Baker Baker, Charlie Charlie, and Dog Dog. The rapid advance of Marine ground forces during the first three days meant that Major Robert L. Schreier’s 1st Signal Battalion had a job on its hands. The main body reached the objective area on board the _President Jackson_, and the first units ashore were the battalion and regimental ANGLICO teams, most of which had embarked in LSTs. When the ADC group displaced from Wolmi-do to Inchon, radio facilities were maintained without a hitch. Radio and message center facilities met all requirements during the night of 16–17 September. Teletype (through radio carrier) was initiated between the Division CP and Corps, afloat on the _Mount McKinley_. And by the morning of D-plus 2, such progress had been made that wire communication was established not only with both advancing infantry regiments but also with most of the battalions.[250] [250] 1st MarDiv _SAR_, Annex George George.